Aluminum base member for semiconductor device containing a nitrogen rich
surface and method for producing the same
    1.
    发明授权
    Aluminum base member for semiconductor device containing a nitrogen rich surface and method for producing the same 有权
    含有富氮表面的半导体装置用铝基材及其制造方法

    公开(公告)号:US6123895A

    公开(公告)日:2000-09-26

    申请号:US256783

    申请日:1999-02-24

    摘要: A member for semiconductor devices comprising a composite alloy of aluminum or an aluminum alloy and silicon carbide, wherein silicon carbide grains are dispersed in aluminum or the aluminum alloy in an amount of from 10 to 70% by weight, the amount of nitrogen in the surface of the member is larger than that in the inside thereof, and the ratio of aluminum or the aluminum alloy to silicon carbide is the same in the surface and the inside. The member is produced by mixing powdery materials of aluminum or an aluminum alloy and silicon carbide, compacting the mixed powder, and sintering the compact in a non-oxidizing atmosphere containing nitrogen gas, at a temperature between 600.degree. C. and the melting point of aluminum. The member is lightweight and has high thermal conductivity as well as thermal expansion coefficient which is well matches with that of ceramics and others. Therefore, the member is especially favorable to high-power devices.

    摘要翻译: 包括铝或铝合金的复合合金和碳化硅的半导体器件的构件,其中碳化硅颗粒以10至70重量%的量分散在铝或铝合金中,表面中的氮的量 的构件比其内部大,铝或铝合金与碳化硅的比例在表面和内部相同。 该构件通过混合铝或铝合金的粉末材料和碳化硅,压制混合粉末,并在含有氮气的非氧化性气氛中在600℃的温度和 铝。 该部件重量轻,导热系数高,热膨胀系数高,与陶瓷等相匹配。 因此,该会员特别有利于大功率设备。

    Injection molding apparatus and method for shutting gate and compressing
mold material
    2.
    发明授权
    Injection molding apparatus and method for shutting gate and compressing mold material 失效
    注射成型装置及关闭浇口和压缩模具材料的方法

    公开(公告)号:US5776407A

    公开(公告)日:1998-07-07

    申请号:US721249

    申请日:1996-09-26

    申请人: Yoshinobu Takeda

    发明人: Yoshinobu Takeda

    IPC分类号: B29C45/56 B29C45/26

    摘要: A mold assembly has a fixed mold incorporating a base with a movable member supported thereon so as to be movable relative thereto and which is closed against a movable mold by a spring. A protrusion on the base passing through the movable member, and a recess on the movable mold engage to form a cavity. A runner and a gate are formed between the movable member and movable mold. Resin is filled into the cavity with the mold lightly closed and the movable member and movable mold closed, but with the movable member and base apart. During filing, the movable member and base open under resin pressure which is held constant inside the cavity. The movable member and base are then closed and when the gate closes with engagement of the protruding and recess portions, a constant amount of resin remains in the mold cavity, which is then compressed.

    摘要翻译: 模具组件具有固定模具,该固定模具具有底座,可移动构件被支撑在其上,以便能够相对于其移动并且通过弹簧与活动模具相对地闭合。 穿过可移动部件的基部上的突起,可动模具上的凹部接合形成空腔。 在可动构件和活动模具之间形成有流道和浇口。 树脂被填充到模具中,模具轻微关闭,可移动构件和可移动模具关闭,但可移动构件和基座分开。 在压片过程中,可动构件和底座在树脂压力下打开,树脂压力保持恒定在腔内。 然后可动构件和底座被关闭,并且当通过突出部分和凹陷部分的接合而门关闭时,恒定量的树脂保留在模腔中,然后将其压缩。

    Method of manufacturing powder molding and powder feeder
    3.
    发明授权
    Method of manufacturing powder molding and powder feeder 失效
    粉末成型和粉末进料器的制造方法

    公开(公告)号:US5672313A

    公开(公告)日:1997-09-30

    申请号:US501066

    申请日:1995-08-11

    摘要: A material powder is packed in a cavity of a mold with high and uniform density to manufacture a powder molding a material powder in a shoe box 12 is fed into a cavity 6 formed in a mold 1 by moving the shoe box 12 over the cavity 6 while oscillating the shoe box until the density of the powder in the cavity increases to at least 1.1 times the apparent density. The powder is then compression-molded.

    摘要翻译: PCT No.PCT / JP94 / 02094 Sec。 371日期:1995年8月11日 102(e)日期1995年8月11日PCT 1994年12月12日PCT PCT。 公开号WO95 / 16559 日期:1995年6月22日将材料粉末填充在具有高密度均匀的模具的空腔中,以制造粉末成型,将鞋盒12中的材料粉末通过移动鞋盒送入形成在模具1中的空腔6中 12在空腔6上方,同时振动鞋盒直到空腔中的粉末的密度增加至表观密度的至少1.1倍。 然后将粉末压塑。

    Low alloy sintered steel and method of preparing the same
    4.
    发明授权
    Low alloy sintered steel and method of preparing the same 失效
    低合金烧结钢及其制备方法

    公开(公告)号:US5427600A

    公开(公告)日:1995-06-27

    申请号:US159808

    申请日:1993-11-30

    摘要: A low alloy sintered steel contains at least 0.15 percent by weight and less than 0.8 percent by weight of carbon. Its matrix is formed by a tempered martensite containing prior austenite crystal grains of not more than 15 .mu.m in mean grain size. Pores and nonmetallic inclusions contained in the matrix are not more than 50 .mu.m in maximum diameter, and the density of the low alloy sintered steel is at least 96 percent of theoretical density. A raw material powder for forming the low alloy sintered steel includes iron alloy powder which is prepared by an atomizing process, and is treated with a dry mill in an inert gas atmosphere or in the atmospheric air. Thus, dislocations are introduced into the raw material powder, and nonmetallic inclusions contained in the raw material powder are pulverized to be not more than 50 .mu.m in maximum diameter. Not only static characteristics but also dynamic characteristics, such as fatigue strength, of the low alloy sintered steel are improved.

    摘要翻译: 低合金烧结钢含有至少0.15重量%且小于0.8重量%的碳。 其基体由含有平均晶粒尺寸不超过15μm的奥氏体晶粒的回火马氏体形成。 基体中含有的孔和非金属夹杂物最大直径不大于50μm,低合金烧结钢的密度至少为理论密度的96%。 用于形成低合金烧结钢的原料粉末包括通过雾化工艺制备的铁合金粉末,并在惰性气体气氛或大气中用干磨机处理。 因此,将错位引入原料粉末中,将原料粉末中所含的非金属夹杂物粉碎至最大直径不超过50μm。 低合金烧结钢不仅具有静态特性,而且还具有疲劳强度等动态特性。

    Distributed-constant filter
    5.
    发明授权
    Distributed-constant filter 失效
    分布式常数滤波器

    公开(公告)号:US4901044A

    公开(公告)日:1990-02-13

    申请号:US293945

    申请日:1989-01-05

    IPC分类号: H01P1/205

    CPC分类号: H01P1/2056

    摘要: A quarter-wave distributed-constant dielectric filter or resonator having a ceramic body which typically is composed principally of barium titanate. The ceramic filter body has one or more resonance holes extending therethrough. A conductive covering of silver or the like on the filter body has a portion formed on the surface defining each resonance hole. Mounted in each resonance hole is a prefabricated capacitor having a first terminal extending from within the resonance hole. The second terminal is electrically coupled to the conductive covering on the surface of the resonance hole. The capacitance of the capacitor or capacitors can be known before they are mounted to the filter body, so that the filter is readily manufacturable to exact electrical characteristics desired.

    摘要翻译: 具有典型地主要由钛酸钡组成的陶瓷体的四分之一波长分布常数介质滤波器或谐振器。 陶瓷过滤器主体具有一个或多个延伸穿过其中的共振孔。 过滤器主体上的银等的导电覆盖层具有形成在限定每个共鸣孔的表面上的部分。 安装在每个谐振孔中的是具有从谐振孔内延伸的第一端子的预制电容器。 第二端子电耦合到谐振孔表面上的导电覆盖层。 电容器或电容器的电容在它们被安装到过滤器主体之前可以是已知的,使得过滤器容易制造成精确的所需电气特性。

    Injection molding process
    6.
    发明授权
    Injection molding process 失效
    注塑工艺

    公开(公告)号:US4826641A

    公开(公告)日:1989-05-02

    申请号:US233904

    申请日:1988-08-17

    CPC分类号: B29C45/77 B29C45/00

    摘要: In an injection molding process, male and female dies are first clamped together by a prescribed clamping force to provide surfaces defining a cavity of a prescribed extruded area therebetween. Then, a molten resin is injected at a prescribed injection pressure into the cavity until the cavity is filled with the molten resin. Subsequently, the molten resin filled in the cavity is held at a prescribed holding pressure, so that the resin within the cavity solidifies to produce a molded article. The injection pressure in the injecting step is controlled so as to decrease immediately before the cavity is filled with the molten resin to thereby prevent a pressure boost from occurring upon the termination of the injecting step. The holding pressure in the holding step is controlled in such a manner that a maximum of the pressure of the resin within the cavity in the holding step is higher than a maximum of the pressure of the resin within the cavity in the injecting step.

    摘要翻译: 在注射成型工艺中,通过规定的夹紧力将阳模和阴模首先夹紧在一起,以提供限定其间的规定挤压区域的空腔的表面。 然后,将熔融树脂以规定的注射压力注入到空腔中,直到空腔充满熔融树脂。 随后,将填充在空腔中的熔融树脂保持在规定的保持压力下,使腔体内的树脂固化,制成成形品。 控制注射步骤中的注射压力,以便在空腔充满熔融树脂之前立即减少,从而防止在注射步骤终止时发生加压。 控制保持步骤中的保持压力以这样的方式进行控制,使得保持步骤中的腔内的树脂的最大压力高于注射步骤中的腔内的树脂的压力的最大值。

    Photoreceptor for electrophotography and method of manufacturing the same
    8.
    发明授权
    Photoreceptor for electrophotography and method of manufacturing the same 失效
    电子照相用光感受器及其制造方法

    公开(公告)号:US6093513A

    公开(公告)日:2000-07-25

    申请号:US295407

    申请日:1999-04-21

    IPC分类号: G03G5/05 G03G5/147 G03G5/047

    CPC分类号: G03G5/0592 G03G5/14791

    摘要: Disclosed herein is a photoreceptor for electrophotography having an over coating layer formed on a substrate and prepared by applying a composition containing silica particles, an organic compound chemically bonded thereto and a photo polymerization initiator and by curing said composition; said organic compound having an polymerizable unsaturated group, a group designated by Formula (1) or a group designated by Formula (2), and said silica particles and said organic compound being bonded with each other through a silyloxy group. The photoreceptor for electrophotography has not only excellent durabilities and an excellent resistance to printing but also excellent electrophoto characteristics such as sensitivity and a residual potential. ##STR1## (wherein --X-- is selected from --NH--, --O-- and --S--, --Y-- is an oxygen atom or a sulfur atom, and when --X-- is --O--, Y is said sulfur atom).

    摘要翻译: 本文公开了一种用于电子照相的感光体,其具有在基底上形成的涂层,并通过涂布含有二氧化硅颗粒,化学键合的有机化合物和光聚合引发剂并通过固化所述组合物的组合物制备; 所述有机化合物具有可聚合不饱和基团,由式(1)表示的基团或由式(2)表示的基团,所述二氧化硅颗粒和所述有机化合物通过甲硅烷氧基彼此键合。 用于电子照相的感光体不仅具有优异的耐久性和优异的耐印刷性,而且还具有优异的电子照相特性,如灵敏度和残留电位。 (其中-X-选自-NH-,-O-和-S-,-Y-是氧原子或硫原子,当-X-是-O-,Y是所说的硫原子时)。

    Powder forging process
    9.
    发明授权
    Powder forging process 失效
    粉末锻造工艺

    公开(公告)号:US5547632A

    公开(公告)日:1996-08-20

    申请号:US359674

    申请日:1994-12-20

    IPC分类号: B22F3/02 B22F3/17 B22F3/16

    CPC分类号: B22F3/17

    摘要: In a powder forging process, a heated green compact is placed in a stationary die and subjected to a press-forging carried out mainly to reduce the thickness thereof by cooperation of the stationary die with a movable die. The press-forging is performed at two pressing steps. After placement of the green compact into the concave molding portion of the stationary die, the pressing step were carried out. Thus, it is possible to produce a forged product having a high strength and a high toughness. A heated heat insulator also may be placed in the stationary die to provide a temperature-retaining effect to the green compact before and during pressing.

    摘要翻译: 在粉末锻造方法中,将加热的生坯压实成型体放置在固定模具中,并进行压制加工,主要通过固定模具与活动模具的配合来减小其厚度。 压锻在两个压制步骤进行。 在将压坯放入固定模的凹形成型部之后,进行加压工序。 因此,可以生产具有高强度和高韧性的锻造产品。 加热的绝热体也可以放置在固定模具中,以在压制之前和期间向生坯提供温度保持效果。